386 lines
14 KiB
C++
386 lines
14 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Brian Ryner <bryner@brianryner.com> (Original Author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsNativeTheme.h"
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#include "nsIDocument.h"
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#include "nsIContent.h"
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#include "nsIFrame.h"
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#include "nsIPresShell.h"
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#include "nsPresContext.h"
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#include "nsIEventStateManager.h"
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#include "nsString.h"
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#include "nsINameSpaceManager.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "nsILookAndFeel.h"
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#include "nsThemeConstants.h"
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#include "nsIComponentManager.h"
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PRUint8 nsNativeTheme::sButtonActiveBorderStyle = NS_STYLE_BORDER_STYLE_INSET;
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PRUint8 nsNativeTheme::sButtonInactiveBorderStyle = NS_STYLE_BORDER_STYLE_OUTSET;
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nsILookAndFeel::nsColorID nsNativeTheme::sButtonBorderColorID = nsILookAndFeel::eColor_buttonface;
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nsILookAndFeel::nsColorID nsNativeTheme::sButtonDisabledBorderColorID = nsILookAndFeel::eColor_buttonface;
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nsILookAndFeel::nsColorID nsNativeTheme::sButtonBGColorID = nsILookAndFeel::eColor_buttonface;
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nsILookAndFeel::nsColorID nsNativeTheme::sButtonDisabledBGColorID = nsILookAndFeel::eColor_buttonface;
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PRUint8 nsNativeTheme::sTextfieldBorderStyle = NS_STYLE_BORDER_STYLE_INSET;
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nsILookAndFeel::nsColorID nsNativeTheme::sTextfieldBorderColorID = nsILookAndFeel::eColor_threedface;
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PRBool nsNativeTheme::sTextfieldBGTransparent = PR_FALSE;
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nsILookAndFeel::nsColorID nsNativeTheme::sTextfieldBGColorID = nsILookAndFeel::eColor__moz_field;
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nsILookAndFeel::nsColorID nsNativeTheme::sTextfieldDisabledBGColorID = nsILookAndFeel::eColor_threedface;
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PRUint8 nsNativeTheme::sListboxBorderStyle = NS_STYLE_BORDER_STYLE_INSET;
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nsILookAndFeel::nsColorID nsNativeTheme::sListboxBorderColorID = nsILookAndFeel::eColor_threedface;
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nsILookAndFeel::nsColorID nsNativeTheme::sListboxBGColorID = nsILookAndFeel::eColor__moz_field;
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nsILookAndFeel::nsColorID nsNativeTheme::sListboxDisabledBGColorID = nsILookAndFeel::eColor_threedface;
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PRUint8 nsNativeTheme::sComboboxBorderStyle = NS_STYLE_BORDER_STYLE_INSET;
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nsILookAndFeel::nsColorID nsNativeTheme::sComboboxBorderColorID = nsILookAndFeel::eColor_threedface;
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PRBool nsNativeTheme::sComboboxBGTransparent = PR_FALSE;
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nsILookAndFeel::nsColorID nsNativeTheme::sComboboxBGColorID = nsILookAndFeel::eColor__moz_field;
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nsILookAndFeel::nsColorID nsNativeTheme::sComboboxDisabledBGColorID = nsILookAndFeel::eColor_threedface;
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#ifdef MOZ_WIDGET_GTK2
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// Cross-platform assumptions are evil. GTK seems to give 3px border on every widget.
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nsMargin nsNativeTheme::sTextfieldBorderSize(3, 3, 3, 3);
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nsMargin nsNativeTheme::sListboxBorderSize(3, 3, 3, 3);
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nsMargin nsNativeTheme::sComboboxBorderSize(3, 3, 3, 3);
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nsMargin nsNativeTheme::sButtonBorderSize(3, 3, 3, 3);
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#else
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nsMargin nsNativeTheme::sTextfieldBorderSize(2, 2, 2, 2);
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nsMargin nsNativeTheme::sListboxBorderSize(2, 2, 2, 2);
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nsMargin nsNativeTheme::sComboboxBorderSize(2, 2, 2, 2);
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nsMargin nsNativeTheme::sButtonBorderSize(2, 2, 2, 2);
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#endif
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nsNativeTheme::nsNativeTheme()
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{
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}
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nsIPresShell *
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nsNativeTheme::GetPresShell(nsIFrame* aFrame)
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{
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if (!aFrame)
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return nsnull;
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// this is a workaround for the egcs 1.1.2 not inliningg
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// aFrame->GetPresContext(), which causes an undefined symbol
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nsPresContext *context = aFrame->GetStyleContext()->GetRuleNode()->GetPresContext();
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return context ? context->GetPresShell() : nsnull;
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}
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PRInt32
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nsNativeTheme::GetContentState(nsIFrame* aFrame, PRUint8 aWidgetType)
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{
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if (!aFrame)
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return 0;
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PRBool isXULCheckboxRadio =
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(aWidgetType == NS_THEME_CHECKBOX ||
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aWidgetType == NS_THEME_CHECKBOX_SMALL ||
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aWidgetType == NS_THEME_RADIO ||
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aWidgetType == NS_THEME_RADIO_SMALL) &&
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aFrame->GetContent()->IsNodeOfType(nsINode::eXUL);
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if (isXULCheckboxRadio)
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aFrame = aFrame->GetParent();
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nsIPresShell *shell = GetPresShell(aFrame);
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if (!shell)
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return 0;
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PRInt32 flags = 0;
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shell->GetPresContext()->EventStateManager()->GetContentState(aFrame->GetContent(), flags);
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if (isXULCheckboxRadio && (aWidgetType == NS_THEME_RADIO || aWidgetType == NS_THEME_RADIO_SMALL)) {
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if (IsFocused(aFrame))
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flags |= NS_EVENT_STATE_FOCUS;
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}
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return flags;
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}
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PRBool
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nsNativeTheme::CheckBooleanAttr(nsIFrame* aFrame, nsIAtom* aAtom)
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{
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if (!aFrame)
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return PR_FALSE;
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nsIContent* content = aFrame->GetContent();
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if (content->IsNodeOfType(nsINode::eHTML))
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return content->HasAttr(kNameSpaceID_None, aAtom);
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// For XML/XUL elements, an attribute must be equal to the literal
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// string "true" to be counted as true. An empty string should _not_
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// be counted as true.
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return content->AttrValueIs(kNameSpaceID_None, aAtom,
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NS_LITERAL_STRING("true"), eCaseMatters);
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}
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PRInt32
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nsNativeTheme::CheckIntAttr(nsIFrame* aFrame, nsIAtom* aAtom)
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{
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if (!aFrame)
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return 0;
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nsAutoString attr;
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aFrame->GetContent()->GetAttr(kNameSpaceID_None, aAtom, attr);
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PRInt32 err, value = attr.ToInteger(&err);
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if (NS_FAILED(err))
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return 0;
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return value;
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}
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PRBool
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nsNativeTheme::GetCheckedOrSelected(nsIFrame* aFrame, PRBool aCheckSelected)
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{
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if (!aFrame)
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return PR_FALSE;
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nsIContent* content = aFrame->GetContent();
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if (content->IsNodeOfType(nsINode::eXUL)) {
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// For a XUL checkbox or radio button, the state of the parent determines
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// the checked state
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aFrame = aFrame->GetParent();
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} else {
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// Check for an HTML input element
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nsCOMPtr<nsIDOMHTMLInputElement> inputElt = do_QueryInterface(content);
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if (inputElt) {
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PRBool checked;
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inputElt->GetChecked(&checked);
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return checked;
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}
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}
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return CheckBooleanAttr(aFrame, aCheckSelected ? nsWidgetAtoms::selected
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: nsWidgetAtoms::checked);
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}
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static void
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ConvertBorderToAppUnits(nsPresContext* aPresContext, const nsMargin &aSource, nsMargin &aDest)
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{
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PRInt32 cp2a = nsPresContext::AppUnitsPerCSSPixel();
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PRInt32 dp2a = aPresContext->AppUnitsPerDevPixel();
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aDest.top = NS_ROUND_BORDER_TO_PIXELS(NSIntPixelsToAppUnits(aSource.top, cp2a), dp2a);
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aDest.left = NS_ROUND_BORDER_TO_PIXELS(NSIntPixelsToAppUnits(aSource.left, cp2a), dp2a);
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aDest.bottom = NS_ROUND_BORDER_TO_PIXELS(NSIntPixelsToAppUnits(aSource.bottom, cp2a), dp2a);
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aDest.right = NS_ROUND_BORDER_TO_PIXELS(NSIntPixelsToAppUnits(aSource.right, cp2a), dp2a);;
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}
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PRBool
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nsNativeTheme::IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
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PRUint8 aWidgetType)
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{
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// Check for specific widgets to see if HTML has overridden the style.
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if (aFrame && (aWidgetType == NS_THEME_BUTTON ||
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aWidgetType == NS_THEME_TEXTFIELD ||
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aWidgetType == NS_THEME_TEXTFIELD_MULTILINE ||
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aWidgetType == NS_THEME_LISTBOX ||
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aWidgetType == NS_THEME_DROPDOWN)) {
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if (aFrame->GetContent()->IsNodeOfType(nsINode::eHTML)) {
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nscolor defaultBGColor;
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nscolor defaultBorderColor;
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PRUint8 defaultBorderStyle;
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nsMargin defaultBorderSize;
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PRBool defaultBGTransparent = PR_FALSE;
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nsILookAndFeel *lookAndFeel = aPresContext->LookAndFeel();
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switch (aWidgetType) {
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case NS_THEME_BUTTON:
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ConvertBorderToAppUnits(aPresContext, sButtonBorderSize,
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defaultBorderSize);
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if (IsDisabled(aFrame)) {
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defaultBorderStyle = sButtonInactiveBorderStyle;
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lookAndFeel->GetColor(sButtonDisabledBorderColorID,
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defaultBorderColor);
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lookAndFeel->GetColor(sButtonDisabledBGColorID,
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defaultBGColor);
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} else {
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PRInt32 contentState = GetContentState(aFrame, aWidgetType);
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if (contentState & NS_EVENT_STATE_HOVER &&
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contentState & NS_EVENT_STATE_ACTIVE)
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defaultBorderStyle = sButtonActiveBorderStyle;
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else
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defaultBorderStyle = sButtonInactiveBorderStyle;
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lookAndFeel->GetColor(sButtonBorderColorID,
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defaultBorderColor);
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lookAndFeel->GetColor(sButtonBGColorID,
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defaultBGColor);
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}
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break;
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case NS_THEME_TEXTFIELD:
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case NS_THEME_TEXTFIELD_MULTILINE:
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defaultBorderStyle = sTextfieldBorderStyle;
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ConvertBorderToAppUnits(aPresContext, sTextfieldBorderSize, defaultBorderSize);
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lookAndFeel->GetColor(sTextfieldBorderColorID, defaultBorderColor);
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defaultBGTransparent = sTextfieldBGTransparent;
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if (!defaultBGTransparent) {
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if (IsDisabled(aFrame))
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lookAndFeel->GetColor(sTextfieldDisabledBGColorID, defaultBGColor);
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else
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lookAndFeel->GetColor(sTextfieldBGColorID, defaultBGColor);
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}
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break;
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case NS_THEME_LISTBOX:
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defaultBorderStyle = sListboxBorderStyle;
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ConvertBorderToAppUnits(aPresContext, sListboxBorderSize, defaultBorderSize);
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lookAndFeel->GetColor(sListboxBorderColorID, defaultBorderColor);
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if (IsDisabled(aFrame))
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lookAndFeel->GetColor(sListboxDisabledBGColorID, defaultBGColor);
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else
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lookAndFeel->GetColor(sListboxBGColorID, defaultBGColor);
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break;
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case NS_THEME_DROPDOWN:
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defaultBorderStyle = sComboboxBorderStyle;
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ConvertBorderToAppUnits(aPresContext, sComboboxBorderSize, defaultBorderSize);
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lookAndFeel->GetColor(sComboboxBorderColorID, defaultBorderColor);
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defaultBGTransparent = sComboboxBGTransparent;
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if (!defaultBGTransparent) {
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if (IsDisabled(aFrame))
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lookAndFeel->GetColor(sComboboxDisabledBGColorID, defaultBGColor);
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else
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lookAndFeel->GetColor(sComboboxBGColorID, defaultBGColor);
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}
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break;
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default:
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NS_ERROR("nsNativeTheme::IsWidgetStyled widget type not handled");
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return PR_FALSE;
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}
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// Check whether background differs from default
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const nsStyleBackground* ourBG = aFrame->GetStyleBackground();
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if (defaultBGTransparent) {
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if (!(ourBG->mBackgroundFlags & NS_STYLE_BG_COLOR_TRANSPARENT))
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return PR_TRUE;
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} else if (ourBG->mBackgroundColor != defaultBGColor ||
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ourBG->mBackgroundFlags & NS_STYLE_BG_COLOR_TRANSPARENT)
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return PR_TRUE;
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if (!(ourBG->mBackgroundFlags & NS_STYLE_BG_IMAGE_NONE))
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return PR_TRUE;
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// Check whether border style or color differs from default
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const nsStyleBorder* ourBorder = aFrame->GetStyleBorder();
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for (PRInt32 i = 0; i < 4; ++i) {
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if (ourBorder->GetBorderStyle(i) != defaultBorderStyle)
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return PR_TRUE;
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PRBool borderFG, borderClear;
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nscolor borderColor;
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ourBorder->GetBorderColor(i, borderColor, borderFG, borderClear);
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if (borderColor != defaultBorderColor || borderClear)
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return PR_TRUE;
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}
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// Check whether border size differs from default
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if (ourBorder->GetBorder() != defaultBorderSize)
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return PR_TRUE;
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}
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}
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return PR_FALSE;
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}
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// treeheadercell:
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nsNativeTheme::TreeSortDirection
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nsNativeTheme::GetTreeSortDirection(nsIFrame* aFrame)
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{
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if (!aFrame)
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return eTreeSortDirection_Natural;
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static nsIContent::AttrValuesArray strings[] =
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{&nsWidgetAtoms::descending, &nsWidgetAtoms::ascending, nsnull};
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switch (aFrame->GetContent()->FindAttrValueIn(kNameSpaceID_None,
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nsWidgetAtoms::sortdirection,
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strings, eCaseMatters)) {
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case 0: return eTreeSortDirection_Descending;
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case 1: return eTreeSortDirection_Ascending;
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}
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return eTreeSortDirection_Natural;
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}
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// tab:
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PRBool
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nsNativeTheme::IsBottomTab(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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nsAutoString classStr;
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aFrame->GetContent()->GetAttr(kNameSpaceID_None, nsWidgetAtoms::_class, classStr);
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return !classStr.IsEmpty() && classStr.Find("tab-bottom") != kNotFound;
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}
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PRBool
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nsNativeTheme::IsFirstTab(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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return aFrame->GetContent()->HasAttr(kNameSpaceID_None, nsWidgetAtoms::firsttab);
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}
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PRBool
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nsNativeTheme::IsLastTab(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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return aFrame->GetContent()->HasAttr(kNameSpaceID_None, nsWidgetAtoms::lasttab);
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}
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// progressbar:
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PRBool
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nsNativeTheme::IsIndeterminateProgress(nsIFrame* aFrame)
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{
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if (!aFrame)
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return PR_FALSE;
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return aFrame->GetContent()->AttrValueIs(kNameSpaceID_None, nsWidgetAtoms::mode,
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NS_LITERAL_STRING("undetermined"),
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eCaseMatters);
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}
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